//声明

let str1 =`i am string`
console.log(typeof str1)

//出现换码行
let str2 = `<ul>
    <li>11</li> 
    <li>22</li> 
    <li>33</li> 
    <li>44</li>            
</ul>`


//变量拼接
const xingname = 'mingming'
let str3 = `my name is ${xingname}`
console.log(str3)

